Improved amalgamator and ore-concentrator



J'.SCOTT. AMALGAMATOR AND ORE GON GBNTRATOR.

No. 103,377. Patented May 24,1870.

' Wiines s: Inve for: 7 L1, m; y m. M

waited smu tglcw Will JOSEPH SCOTT, OF SAN FRANOISQO, CALIFORNIA.

Letters Patent No. 103,377, dated May 24, 1870.

IMPROVED AMALGAMA'I'OR ORE-CONCENTRATOR.

fl'he Schedule referred to in these Letters Patent and making part. of the sax n.

1'0 all whom may concern;

Be it known that I, JOSEPH SCOTT, of the city and county of San Francisco, State of Galiloruia, have invented an'Improved Concentrator and Ainalgamator for Ores containing the Precious Metals; and I do hereby declarethat the following. is a full, clear, and exact description of the same, reference being bad to the accompanying drawings and to the letters marked thereon.

My invention relates 'to the combination of a fixed and a revolvingpan, withsuitable agitating, feeding, and discharging apparatus, insuch a manner that the ground ores operated uponmay be conducted or forced through a body of quicksilver and the metallic particles amalgamated, andthe lighter or earthy particles discharged after having deposited. the heavier and .more valuable-portions in the machine.

To enable others skilled in the art or science-to which itmost nearly appertains to make and use my invention, I willproceedto fully describe its construe-- tion and operation.

The accompanying-drawing is a vertical section through the axisof a"ma,thi|1e'embodyi ng my'inverition.

Arepresents the frame. I

B the driving-shaft, to which is rigidlysecured th re'volving pan O. p

D is the feeding-tube, through which theore is supplied to the machine.

E is the fixedpan, prevented from revolvingfby beingsecured to the feeding tube D.

F is the lid or cover to the revolving pan 0, andis provided'with a central circular discharge-opening, a, through which the lighter particles pass into the basin G, and thenceoff throughthe pipe H.

The basin G is prevented from revolving byibeing secured by brackets or rods-b to the frame A.

c is a circular groove, recess, or depression in the bottom of the revolving pan, for containing mercury or quicksilver.

- The lower end of the tube D should always be below the surface of the mercury.

The arms or'rods dare situated at unequal distances from the axis of the machine, and are for the purpose of agitating or Stirling the ore,

eis a plug, closing anaperture through which the quicksilver may be drawn ofl.

Suitable openings may be provided for removing the concentrated ore; one such opening'is shown'at f.

Power being applied to the shaft B, the pan'O is caused to revolve, and the ground ore, accompanied by a stream of water, being fed into the top of the -tuhe D,-is caused todesc'end by the force of gravity and pass through the quicksilver, where any free gold or silver will he amalgamated and remain in the reccss G, and the centrifugal force, caused: by the'revolution or current of the ore around the axis of the machine, will cause those partieles to move outtoward 'the circumference of the pan 0, crowding those in advance up and over, into the pan E and up through the circhlar opening a into the basin G, and out at the dischargepipe H; but the orein its passage will be continually depositing the coarser and heavier portions nearv the circumference of the bottom of the pan 0 and ;in the pan E, thus accomplishing the desired'object by the novel and effective operation of my invention. 

